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Re: [PATCHv6 1/8] gitweb: refactor author name insertion

From
Jakub Narebski <jnareb@gmail.com>
Date
Jun 25, 2009, 22:55 UTC
Message-ID
<200906260055.11347.jnareb@gmail.com>
In-Reply-To
<1245926587-25074-2-git-send-email-giuseppe.bilotta@gmail.com>
On Thu, 25 June 2009, Giuseppe Bilotta wrote:
> Collect all author display code in appropriate functions, making it
> easiser to extend them on the CGI side, and rely on CSS rather than
> hard-coded HTML formatting for easier customization.
Typo: s/easiser/easier/ 

This paragraph could have been written better, perhaps by dividing it in two sentences: one talking about collecting/factoring common code, one talking about moving from presentational HTML (<i>, <b> tags) to styling using CSS and class attribute.

Do I understand it correctly that this was meant as pure refactoring, i.e. that none of gitweb output should have changed? Because you made a mistake, and 'log' view is broken (and it doesn't look like it did before). See comments below for cause and (simple) solution.

> 
> Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
> ---
What are the changes as compared to previous (or just earlier) version?
Show 22 quoted lines
>  gitweb/gitweb.css  |    5 ++-
>  gitweb/gitweb.perl |   80 +++++++++++++++++++++++++++++++---------------------
>  2 files changed, 52 insertions(+), 33 deletions(-)
> 
> diff --git a/gitweb/gitweb.css b/gitweb/gitweb.css
> index a01eac8..68b22ff 100644
> --- a/gitweb/gitweb.css
> +++ b/gitweb/gitweb.css
> @@ -132,11 +132,14 @@ div.list_head {
>  	font-style: italic;
>  }
>  
> +.author_date, .author {
> +	font-style: italic;
> +}
> +
>  div.author_date {
>  	padding: 8px;
>  	border: solid #d9d8d1;
>  	border-width: 0px 0px 1px 0px;
> -	font-style: italic;
>  }
Nice.
Show 19 quoted lines
>  
>  a.list {
> diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
> index 1e7e2d8..9b60418 100755
> --- a/gitweb/gitweb.perl
> +++ b/gitweb/gitweb.perl
> @@ -1469,6 +1469,16 @@ sub format_subject_html {
>  	}
>  }
>  
> +# format the author name of the given commit with the given tag
> +# the author name is chopped and escaped according to the other
> +# optional parameters (see chop_str).
> +sub format_author_html {
> +	my $tag = shift;
> +	my $co = shift;
> +	my $author = chop_and_escape_str($co->{'author_name'}, @_);
> +	return "<$tag class=\"author\">" . $author . "</$tag>\n";
> +}

Good... although I wonder if we should not get rid of chop_and_escape_str altogether, and for example add title attribute (if needed due to having to do shortening) directly to $tag, and not to inner <span> element.

Should "\n" be in returned string? Just asking.
Show 13 quoted lines
> +
>  # format git diff header line, i.e. "diff --(git|combined|cc) ..."
>  sub format_git_diff_header_line {
>  	my $line = shift;
> @@ -3214,13 +3224,36 @@ sub git_print_header_div {
>  	      "\n</div>\n";
>  }
>  
> +# Outputs the author name and date in long form
>  sub git_print_authorship {
>  	my $co = shift;
> +	my %params = @_;
> +	my $tag = $params{'tag'} || 'div';
Nice using of hash to have named optional params.

Usually though we use %opts and not %params for the name of this hash, and we use CGI-like keys prefixed by '-', for example '-z' in parse_ls_tree_line(), '-nbsp' in esc_html, '-nohtml' in quot_cec(), '-remove_title', '-remove_signoff' and '-final_empty_line' in git_print_log(). git_commitdiff() uses %params, but it doesn't have non-optional parameters (still, I guess we should use %opts for consistency), and it uses '-format' and '-single' as names.

href() subroutine uses %params... but those are not extra named optional parameters to subroutine; they are CGI query parameters.

NOTE: Default tag (as used in git_log) should be not generic block 
element tag: 'div', but rather generic inline element: 'span'.  The
presentational HTML element '<i>' which we are replacing is inline
(layout) element.

It is because it is '<div>' (and probably because some "random" CSS rules in gitweb.css match it) it breaks layout or 'log' view. There two horizontal lines: one for <div> element, and one for unnecessary now <br> element. As div.author_date it has extra 8px padding, from which the top padding is visible as extra unnecessary vertical space.

Show 17 quoted lines
>  
>  	my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
> -	print "<div class=\"author_date\">" .
> +	print "<$tag class=\"author_date\">" .
>  	      esc_html($co->{'author_name'}) .
>  	      " [$ad{'rfc2822'}";
> +	if ($params{'localtime'}) {
> +		if ($ad{'hour_local'} < 6) {
> +			printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
> +			       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
> +		} else {
> +			printf(" (%02d:%02d %s)",
> +			       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
> +		}
> +	}
> +	print "]</$tag>\n";
> +}
Gaah, git has chosen to show this diff a bit strangely...
> +
> +# Outputs table rows containign the full author and commiter information.
Typo: s/containign/containing/

You could say that it uses format used to show author and comitter fields (headers) in 'commit' view.

Show 22 quoted lines
> +sub git_print_full_authorship {
> +	my $co = shift;
> +	my %ad = parse_date($co->{'author_epoch'}, $co->{'author_tz'});
> +	my %cd = parse_date($co->{'committer_epoch'}, $co->{'committer_tz'});
> +	print "<tr><td>author</td><td>" . esc_html($co->{'author'}) . "</td></tr>\n".
> +	      "<tr>" .
> +	      "<td></td><td> $ad{'rfc2822'}";
>  	if ($ad{'hour_local'} < 6) {
>  		printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
>  		       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
> @@ -3228,7 +3261,12 @@ sub git_print_authorship {
>  		printf(" (%02d:%02d %s)",
>  		       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
>  	}
> -	print "]</div>\n";
> +	print "</td>" .
> +	      "</tr>\n";
> +	print "<tr><td>committer</td><td>" . esc_html($co->{'committer'}) . "</td></tr>\n";
> +	print "<tr><td></td><td> $cd{'rfc2822'}" .
> +	      sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
> +	      "</td></tr>\n";
>  }

By the way, what about author / tagger info used in 'tag' view? Wouldn't it be better to factor out generating table rows for single author / committer / tagger header (field) info?

Show 15 quoted lines
>  
>  sub git_print_page_path {
> @@ -4142,11 +4180,9 @@ sub git_shortlog_body {
>  			print "<tr class=\"light\">\n";
>  		}
>  		$alternate ^= 1;
> -		my $author = chop_and_escape_str($co{'author_name'}, 10);
>  		# git_summary() used print "<td><i>$co{'age_string'}</i></td>\n" .
>  		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
> -		      "<td><i>" . $author . "</i></td>\n" .
> -		      "<td>";
> +		      format_author_html('td', \%co, 10) . "<td>";
>  		print format_subject_html($co{'title'}, $co{'title_short'},
>  		                          href(action=>"commit", hash=>$commit), $ref);
>  		print "</td>\n" .
Nice refactoring and simplification.
Show 14 quoted lines
> @@ -4193,11 +4229,9 @@ sub git_history_body {
>  			print "<tr class=\"light\">\n";
>  		}
>  		$alternate ^= 1;
> -	# shortlog uses      chop_str($co{'author_name'}, 10)
> -		my $author = chop_and_escape_str($co{'author_name'}, 15, 3);
>  		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
> -		      "<td><i>" . $author . "</i></td>\n" .
> -		      "<td>";
> +	# shortlog:   format_author_html('td', \%co, 10)
> +		      format_author_html('td', \%co, 15, 3) . "<td>";
>  		# originally git_history used chop_str($co{'title'}, 50)
>  		print format_subject_html($co{'title'}, $co{'title_short'},
>  		                          href(action=>"commit", hash=>$commit), $ref);

Nice refactoring and simplification. Good comment.

Show 11 quoted lines
> @@ -4350,9 +4384,8 @@ sub git_search_grep_body {
>  			print "<tr class=\"light\">\n";
>  		}
>  		$alternate ^= 1;
> -		my $author = chop_and_escape_str($co{'author_name'}, 15, 5);
>  		print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
> -		      "<td><i>" . $author . "</i></td>\n" .
> +		      format_author_html('td', \%co, 15, 5) .
>  		      "<td>" .
>  		      $cgi->a({-href => href(action=>"commit", hash=>$co{'id'}),
>  		               -class => "list subject"},
Nice refactoring and simplification.
Show 12 quoted lines
> @@ -5094,9 +5127,9 @@ sub git_log {
>  		      " | " .
>  		      $cgi->a({-href => href(action=>"tree", hash=>$commit, hash_base=>$commit)}, "tree") .
>  		      "<br/>\n" .
> -		      "</div>\n" .
> -		      "<i>" . esc_html($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
>  		      "</div>\n";
> +		      git_print_authorship(\%co);
> +		      print "<br/>\n</div>\n";
>  
>  		print "<div class=\"log_body\">\n";
>  		git_print_log($co{'comment'}, -final_empty_line=> 1);

Here you replace inline <i> element with <div> _block_ element, destroying layout. Replacing default of 'div' by default of inline <span> element restores old layout.

Show 33 quoted lines
> @@ -5115,8 +5148,6 @@ sub git_commit {
>  	$hash ||= $hash_base || "HEAD";
>  	my %co = parse_commit($hash)
>  	    or die_error(404, "Unknown commit object");
> -	my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'});
> -	my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
>  
>  	my $parent  = $co{'parent'};
>  	my $parents = $co{'parents'}; # listref
> @@ -5183,22 +5214,7 @@ sub git_commit {
>  	}
>  	print "<div class=\"title_text\">\n" .
>  	      "<table class=\"object_header\">\n";
> -	print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
> -	      "<tr>" .
> -	      "<td></td><td> $ad{'rfc2822'}";
> -	if ($ad{'hour_local'} < 6) {
> -		printf(" (<span class=\"atnight\">%02d:%02d</span> %s)",
> -		       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
> -	} else {
> -		printf(" (%02d:%02d %s)",
> -		       $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
> -	}
> -	print "</td>" .
> -	      "</tr>\n";
> -	print "<tr><td>committer</td><td>" . esc_html($co{'committer'}) . "</td></tr>\n";
> -	print "<tr><td></td><td> $cd{'rfc2822'}" .
> -	      sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) .
> -	      "</td></tr>\n";
> +	git_print_full_authorship(\%co);
>  	print "<tr><td>commit</td><td class=\"sha1\">$co{'id'}</td></tr>\n";
>  	print "<tr>" .
>  	      "<td>tree</td>" .

I'd rather use here (as mentioned in comment about git_print_full_authorship subroutine) something like the following:

+ git_print_authorship_header(\%co, 'author'); + git_print_authorship_header(\%co, 'committer');

Or something like that.  But this might be a matter of taste.
Show 9 quoted lines
> @@ -5579,7 +5595,7 @@ sub git_commitdiff {
>  		git_header_html(undef, $expires);
>  		git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav);
>  		git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash);
> -		git_print_authorship(\%co);
> +		git_print_authorship(\%co, 'localtime' => 1);
>  		print "<div class=\"page_body\">\n";
>  		if (@{$co{'comment'}} > 1) {
>  			print "<div class=\"log\">\n";

Nice. Although... 'localtime' / '-localtime'? Perhaps '-show_localtime'? But that is just nitpicking (naming is hard), and I am not sure if proposed name is any better.

> -- 
> 1.6.3.rc1.192.gdbfcb
> 
> 
Thank you for diligent work on this patch series!
-- 
Jakub Narebski
Poland
Previous: Giuseppe BilottaNext: Jakub Narebski
Message 38 of 46 in “[PATCHv6 0/8] gitweb: gravatar support”
  1. Giuseppe BilottaJun 25, 2009
  2. 1/8 gitweb: refactor author name insertionGiuseppe Bilotta, Jun 25, 2009
  3. 2/8 gitweb: uniform author info for commit and commitdiffGiuseppe Bilotta, Jun 25, 2009
  4. 3/8 gitweb: right-align date cell in shortlogGiuseppe Bilotta, Jun 25, 2009
  5. 4/8 gitweb: (gr)avatar supportGiuseppe Bilotta, Jun 25, 2009
  6. 5/8 gitweb: gravatar url cacheGiuseppe Bilotta, Jun 25, 2009
  7. 6/8 gitweb: add 'alt' to avatar imagesGiuseppe Bilotta, Jun 25, 2009
  8. 7/8 gitweb: recognize 'trivial' acksGiuseppe Bilotta, Jun 25, 2009
  9. 8/8 gitweb: add avatar in signoff linesGiuseppe Bilotta, Jun 25, 2009
  10. 9/8 gitweb: put signoff lines in a tableGiuseppe Bilotta, Jun 25, 2009
  11. Jakub NarebskiJun 27, 2009
  12. Jakub NarebskiJun 27, 2009
  13. Giuseppe BilottaJun 27, 2009
  14. Jakub NarebskiJun 27, 2009
  15. Junio C HamanoJun 27, 2009
  16. Giuseppe BilottaJun 27, 2009
  17. Jakub NarebskiJun 26, 2009
  18. Thomas AdamJun 27, 2009
  19. Jakub NarebskiJun 26, 2009
  20. Giuseppe BilottaJun 26, 2009
  21. Jakub NarebskiJun 26, 2009
  22. Jakub NarebskiJun 26, 2009
  23. Giuseppe BilottaJun 26, 2009
  24. Jakub NarebskiJun 26, 2009
  25. Giuseppe BilottaJun 26, 2009
  26. Jakub NarebskiJun 26, 2009
  27. Junio C HamanoJun 27, 2009
  28. Giuseppe BilottaJun 27, 2009
  29. Jakub NarebskiJun 26, 2009
  30. Giuseppe BilottaJun 26, 2009
  31. Junio C HamanoJun 26, 2009
  32. Giuseppe BilottaJun 26, 2009
  33. Junio C HamanoJun 26, 2009
  34. Jakub NarebskiJun 27, 2009
  35. Jakub NarebskiJun 27, 2009
  36. Jakub NarebskiJun 25, 2009
  37. Giuseppe BilottaJun 26, 2009
  38. Jakub NarebskiJun 25, 2009
  39. Jakub NarebskiJun 25, 2009
  40. Giuseppe BilottaJun 25, 2009
  41. Jakub NarebskiJun 25, 2009
  42. Giuseppe BilottaJun 25, 2009
  43. Junio C HamanoJun 25, 2009
  44. Giuseppe BilottaJun 25, 2009
  45. Junio C HamanoJun 25, 2009
  46. Jakub NarebskiJun 25, 2009

Read the whole thread, see it on lore, or plain text.

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